<form style="padding: 20px" class="layui-form normal" lay-filter="form-verify-limit" id="form-verify-limit" method="post" onsubmit="return false">
    <input type="hidden"/>
    <div class="layui-row">
        <span class="f14b">由于您操作频繁，请先完成以下验证</span>
    </div>
    <div class="layui-form-item">
        <label class="layui-form-label"><span class="text-danger">*</span>图片验证码</label>
        <div class="layui-input-block">
            <input class="layui-input" lay-verify="verifyCode" name="verifyCode" id="verify-request-verify-code" INT maxlength="4" placeholder="请输入图片验证码"/>
            <img id="verify_img_code" title="点击更换验证码"/>
        </div>
    </div>
    <div class="layui-row">
        <button lay-submit="" id="verify-request" lay-filter="verify-request" class="layui-btn fr"><i class="iconfont iconxiayibu"></i>&nbsp;提交</button>
    </div>
</form>